cushman



(No Model.)

A. L. GUSI-IMAN.

I DUST GUARD FOR OAR AXLE BOXES. No. 357,656; I IPatented Feb. 15, 1887.

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hue/2%?" 0 M v M 6 D N PEYERS Pholomlvognphcr Wash Elm! D C UNITEDSTATES PATENT GFFIGE.

ABEL. OUSHMAN, OF CONCORD, NEW HAMPSHIRE, ASSIGNOR TO JOHN A.

WHITE, OF SAME PLACE.

DUST-GUARD FOR CAR-=AXLE BOXES.

SPECIFICATION forming part of Letters Patent No. 357,656, dated February15, 1887.

Application filed December 16, 1886. Selial No. 221,782. (No model.)

T0 all whom it may concern:

Be it known that I, ABE L. CUSHMAN, a citizen of the United States,residing at Goncord, in the county of Merrimac and State of NewHampshire, have invented a new and useful Improvement in Dust-Guards forCar- Axle Boxes, of which the following is a specification.

My invention relates to improvement in dust-guards for car-axle boxes inwhich blocks operated by springs in acasing actin conjunction with a caraxle orjournal.

The object of my improvement is, first, to provide a dust-guard that maybe used on any car-box; second, to provide adust-guard positive againstthe entrance of dust into the box or the exit of oil from the box;third, a dustguard that is simple in construction, easily operated, andrepaired at small cost. I attain these objects by the mechanismillustrated in the accompanying drawings, in which- Figure 1 is a sideview with a portion of the side removed to show the guard spring andreceptacle; Fig. 2, a sectional view on line a a through the guard andbox, showing the guard in position; Fig. 3, a section of the guardremoved.

Similar letters refer to similar parts throughout the views.

The axle box or housing A may be any kind of a car-box, if the innerendis provided with a chamber or receptacle, 0, for holding the guard B,and slotf at the top of the box opening into the dust-guard chamber forthe reception of the dust-guard B.

The frame or casing B is preferably made of iron on account of havingthe guards d d d d, which are made of any kind of wood suitable for thatpurpose, as thick as possible. The guards d are made in four sections.The ends that come in contact with the axle are made to conform with theoutside periphery of the journal or axle D, the outer ends being madenearly rectangular, except one corner, which is made to fit the casingor frame B, the outer ends also being provided with a pin, e, whichguides the spring 0 and holds the block in contact with the axle to takeup the wear and prevent the dustfrom passing through between the guardand axle. The casing is so constru cted that the circular ends of theguards d d d (1, when the points come incontact with each other,willform a circle of the same diameter as the outside periphery of the axle.(See Fig. 2.)

To admit of the necessary vertical play of the casing B and dust-guardsectionsdd dd, the casing is made shorter than thedust-guard chamber orreceptacle 0, and the opening of the receptacle f closed, in the usualway, by driving in a wedge adapted to the said opening. The sections dof the dust-guard, when in their normal position, may be moved apart ina central direction for the purpose of receiving the axle D.

The springs c c c 0 may be made of any material suitable for thatpurpose, and may be in any position if made to act on the sections'd d dd and bring them in contact with the axle D.

I am aware that prior to my invention dustguards for car-axle boxes havebeen made. Therefore I do not claim the combination, broadly; but

What I do claim as my invention is- In a dust-guard, the combination ofa casing, B, having four receptacles for holding the dustguards at d dd, and the guards operated by springs c c c 0 toward the center of theaxle D, to take up the wear of the guards, as set forth and described.

ABE L. CUSHMAN.

\Vitnesses:

HIRAM F. GERRIsH, GEORGE H. MILLs.

